I'm trying to get rid of the error in my Longtable
Overfull \hbox (1.19998pt too wide) in alignment at lines 6--10
This is my MWE
\documentclass[12pt,a4paper,twoside]{report}
\usepackage{longtable}
\usepackage{array}
\begin{document}
\begin{longtable}{|>{\raggedright\arraybackslash}p{\dimexpr 0.5\textwidth -2\tabcolsep\relax}|>{\raggedright\arraybackslash}p{\dimexpr 0.5\textwidth -2\tabcolsep\relax}|}
\hline
Test & Test\\
\hline
\end{longtable}
\end{document}
Why do I get this error? In my understanding both columns of the longtable should take exactly 50% of the textwidth minus the left and right tabcolsep.